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28C256TRT2DE-12 Datasheet(PDF) 5 Page - Maxwell Technologies |
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28C256TRT2DE-12 Datasheet(HTML) 5 Page - Maxwell Technologies |
5 / 14 page 5 All data sheets are subject to change without notice ©2001 Maxwell Technologies All rights reserved. 256K EEPROM (32K x 8-Bit) EEPROM 28C256T 02.18.02 Rev5 WE Pulse Width -120 -150 CE Pulse Width -120 -150 9, 10, 11 t WP 2 t CW 3 200 250 200 250 -- -- -- -- -- -- -- -- ns Address Hold Time -120 -150 9, 10, 11 t AH 150 150 -- -- -- -- ns Data Setup Time -120 -150 9, 10, 11 t DS 75 100 -- -- -- -- ns Data Hold Time -120 -150 9, 10, 11 t DH 10 10 -- -- -- -- ns Chip Enable Hold Time2 -120 -150 9, 10, 11 t CH 0 0 -- -- -- -- ns Output Enable to Write Setup Time -120 -150 9, 10, 11 t OES 0 0 -- -- -- -- ns Output Enable Hold Time -120 -150 9, 10, 11 t OEH 0 0 -- -- -- -- ns Data Latch Time4 -120 -150 9, 10, 11 t DL -- -- 230 280 -- -- ns Write Cycle Time -120 -150 9, 10, 11 t WC -- -- -- -- 10 10 ms Byte Load Window4 -120 -150 9, 10, 11 t BL -- -- 100 100 -- -- us Byte Load Cycle4 -120 -150 9, 10, 11 t BLC 0.55 0.55 -- -- 30 30 us Write Start Time -120 -150 9, 10, 11 t DW 150 150 -- -- -- -- ns 1. Use this device in a longer cycle than this value. 2. WE controlled operation. 3. CE controlled operation. 4. Not tested. TABLE 8. 28C256T AC ELECTRICAL CHARACTERISTICS FOR PAGE/BYTE ERASE AND WRITE OPERATIONS (V CC = 5V ±10%, TA = -55 TO 125 ° C UNLESS OTHERWISE SPECIFIED) PARAMETER SUBGROUPS SYMBOL MIN1 TYP MAX UNITS |
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